Revert "Enable installing Elrepo9 for Rocky Linux 9.3 upgrade"

This reverts commit 6ffa526.

Author: seunghun1ee

etc/kayobe/dnf.yml

@@ -200,7 +200,7 @@ rocky_9_gpg_key: "https://dl.rockylinux.org/pub/rocky/RPM-GPG-KEY-Rocky-9"
 
 # Whether to create a repo file for ELRepo. This affects RedHat-based
 # systems only.
-dnf_install_elrepo_9: true
+dnf_install_elrepo_9: false
 
 # Whether to enable docker dnf repo in stackhpc_dnf_repos
 dnf_enable_docker: true

etc/kayobe/environments/ci-multinode/inventory/group_vars/seed/stackhpc-dnf-repos

@@ -199,7 +199,7 @@ stackhpc_repo_epel_9_version: "{{ stackhpc_repo_distribution }}"
 
 # ELRepo 9
 stackhpc_repo_elrepo_9_url: "{{ stackhpc_repo_mirror_url }}/pulp/content/elrepo/elrepo/el9/x86_64/{{ stackhpc_repo_elrepo_9_version }}"
-stackhpc_repo_elrepo_9_version: "20230907T075311"
+stackhpc_repo_elrepo_9_version: "{{ stackhpc_repo_distribution }}"
 
 ###############################################################################
 # Sources